The course involves a great deal of hard work.
この科目は大変な努力を要する
the demands of special interests
圧力団体の要求
the destructive force of earthquakes
地震の破壊力
The details were worked out between ministers and officials.
大臣と官僚とで協力して詳細は決められた
the era of atomic energy
原子力時代
the exertion of authority
権力の行使
the expansive pressure of steam
蒸気の膨張力
the explosive [muscle] power
爆発力［腕力］
the extension of one's power [land]
勢力［土地］の拡張
the faculty of sight
視力
